Typhoon Nanmadol battered the southwestern part of Japan, leaving at least 43 people injured.
Local authorities have issued evacuation orders for millions of people in the Kyushu, Chugoku and Shikoku regions. The typhoon has also left about 300,000 households without power.
There have been large disruptions in transportation.
More than 700 airline flights scheduled on Monday have been canceled.
Shinkansen train services are also widely suspended.
Transportation operators are asking people to check for the latest service information.